Improving the quality of your voice services shouldn't require costly analog-to-digital conversion equipment. CenturyLink® Digital Switched Service (DSS) lets you deliver fast, easy, and reliable analog and digital voice services over a digital transport. Clear connections free of crosstalk, amplified noise, or distortion help you communicate effectively and show your business at its best for callers. The complete switched digital network solution includes a DS-1 facility, common equipment, local-exchange switching, and flat-usage trunks for access to the local exchange network, all fully customizable to meet your specific requirements. As your business needs grow, CenturyLink DSS gives you a practical and dependable way to upgrade your telecommunications capability while controlling your costs.
Provide Callers with a Clear Signal, Free of Crosstalk, Amplified Noise, and Distortion
Provide Increased Trunking Efficiencies with Two-Way DID
Meet Specific Business Needs with Customized Configured Trunks
Achieve Sub-Second Response Time with Nearly Error-Free Performance
Answer Supervision with Answer-Back Central Office Signaling to Identify When a PBX Call is Completed
Two-Way Data Trunks for Video Applications and 56 Kbps Data Transfer
Available Remote Local Area Network (LAN) Access
Can Be Provisioned on a DS-3 or Higher Transport
Advanced DSS with Direct Inward Dialing (DID) Services to Optimize Trunks and Bypass the Need for an Attendant
Direct DS-1 Interface to Your PBX
Basic DSS with Standard-Class CLASS and Line-Side Services Including Call Waiting, Call Forwarding, and Caller ID
How It Works
At the central office, the facility is multiplexed by a D4 multiplexer onto basic and/or advanced trunks and connects to the public switched telephone network (PSTN). With CenturyLink DSS, the DS-1 passes from the central office to the DS-1 interface to the channel service unit/data service unit (CSU/DSU) and then to the customer's digital PBX. Outbound caller ID does not work with DSS advanced trunks.
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